The DF12A-20DS-0.5V(81) is a 0.50mm pitch board-to-board receptacle from Hirose's DF12 series, with 20 positions arranged in 2 rows. It uses center strip contacts with gold plating (8.00µin) for reliable signal connections across repeated mating cycles. Surface-mount termination and a board guide feature simplify alignment during reflow assembly. The mated stacking height options — 3.5mm, 4mm, or 5mm — let you match the board-to-board spacing your design requires.
For a BOM that already uses this connector, the only path is sourcing remaining inventory or identifying a pin-compatible alternative within the DF12 series. We source this part per RFQ against your target quantity.
The 20-position count is the exact circuit count your BOM line specifies — confirm the mating half also has 20 positions.